CN218235157U - A hydraulic front probe beam support device for a cantilever roadheader - Google Patents

Abstract

The utility model discloses a cantilever type entry driving machine hydraulic pressure forestope supporting device relates to the entry driving machine field, and it includes the chassis, the top of chassis is provided with the roof-rack that can carry out the back-and-forth movement, the both sides of roof-rack all are provided with the limit portion support that can control flexible removal. The utility model discloses a forestope is strutted and can be carried out the back-and-forth movement and control and extend, according to the nimble adjustment of entry driving machine working condition strut the position, guaranteed that entry driving machine cutting part forestope is strutted and can not cut the both sides wall body of rubbing the tunnel when cutting tunnel both sides wall body, avoid producing great sky top space simultaneously, reduced the risk that the tunnel roof caves in.

Description

A hydraulic front probe beam support device for a cantilever roadheader

technical field

The utility model relates to the field of roadheaders, in particular to a hydraulic front probe beam supporting device of a cantilever type roadheader.

Background technique

The hydraulic front beam support is an indispensable device for the temporary support of underground roadway excavation, and it is installed on the cutting part of the roadheader. As shown in Fig. 7, at present, the side part of the existing temporary support structure of the front probe beam is usually turned over, and the side part can effectively increase the support area after the side part is turned over and unfolded. Since the cutting part of the roadheader will rotate and cut with the rotary table of the roadheader as the center of the roadway cutting, in order to ensure that the front beam support will not scratch the roadway when the cutting part of the roadheader cuts the walls on both sides of the roadway The walls on both sides of the roadway need to be completely retracted, which will create a large empty headspace and increase the risk of the roadway roof collapsing.

Utility model content

Based on the above problems, the purpose of this utility model is to provide a hydraulic front beam support device for a cantilever roadheader. The utility model adopts the following technical solutions:

The utility model provides a hydraulic front beam support device for a cantilever type roadheader, which comprises a bottom frame. A top frame capable of moving back and forth is arranged above the bottom frame. Both sides of the top frame are provided with movable Side brackets for side-to-side telescopic movement.

Preferably, the underframe includes two longitudinally arranged first square sleeves, the two first square sleeves are connected by a first connecting beam, and the top surface of the first square sleeve is opened along its length direction. There is a first sliding hole, a first drawing plate is arranged in the first sliding hole, the upper part of the first drawing plate is connected with the top frame, and the lower end of the first drawing plate is fixedly connected with the slider, and the The slider is slidably connected in the first square sleeve, a first oil cylinder is arranged behind the slider, the first oil cylinder is arranged in the first square sleeve, and the telescopic end of the first oil cylinder is connected with the first cylinder An oil cylinder is connected, and the body of the first oil cylinder is connected with the first square sleeve.

Preferably, the top frame includes two second square sleeves arranged horizontally, and the two second square sleeves are connected by a second connecting beam;

Each of the second square sleeves is provided with two second oil cylinders, the second oil cylinders are connected with the second square sleeves, and the telescopic ends of the second oil cylinders are connected to the corresponding side brackets. connect.

Preferably, the second square sleeve at the front is provided with two hinged ears, and the hinged ears are hinged with the corresponding first traction plate.

Preferably, the second connecting beam and the first connecting beam correspond to each other up and down, both sides of the second connecting beam are fixed with guard plates, and the lower end of the guard plate extends to the side of the first connecting beam .

Preferably, the side bracket includes an outer side beam, and both ends of the outer side beam are provided with a sliding guide beam, and the sliding guide beam is slidably connected in the second square sleeve, and the sliding guide joint The end of the beam is connected with the telescopic end of the second oil cylinder.

Preferably, the front part of the underframe is hinged with a front baffle, and a third oil cylinder is arranged behind the front baffle, and the telescopic end of the third oil cylinder is hinged with the front baffle, and the third oil cylinder The body is hinged on the chassis.

Preferably, two main arms are hinged at the rear of the chassis, and the main arms are slidably connected in the main arm sleeve, and a fourth oil cylinder is arranged in the main arm sleeve, and the telescopic end of the fourth oil cylinder is connected to the The main arm is connected, and the fourth oil cylinder body is connected with the main arm sleeve;

The side wall of the front part of the main arm cover is provided with a second sliding hole along its length direction, and a second drawing plate is arranged in the second sliding hole, and one end of the second drawing plate is fixedly connected with the main arm , the other end is connected to the underframe through the fifth oil cylinder, the telescopic end of the fifth oil cylinder is hinged to the underframe, and the body of the fifth oil cylinder is hinged to the second traction plate.

Compared with the prior art, the utility model has the beneficial technical effects:

The front beam support of the utility model can move back and forth and stretch left and right, and the support position can be flexibly adjusted according to the working conditions of the roadheader, which ensures that the front beam support will not Scratching the walls on both sides of the roadway, while avoiding a large empty head space, reduces the risk of the roadway roof collapsing.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural view of the hydraulic front beam support device of the cantilever roadheader in the first embodiment of the present invention;

Fig. 2 is a schematic structural view of the underframe in Embodiment 1 of the utility model;

Fig. 3 is a structural schematic diagram of the top frame and the side bracket in the first embodiment of the utility model;

Fig. 4 is a schematic diagram of the connection structure between the top frame and the side bracket in the first embodiment of the utility model;

Fig. 5 is a structural schematic diagram of the hydraulic front beam support device of the cantilever roadheader in the second embodiment of the utility model;

Fig. 6 is a structural schematic diagram of the main arm sleeve in the second embodiment of the utility model;

Fig. 7 is a schematic diagram of the temporary support structure of the existing front probe beam.

Explanation of reference signs: 1, underframe; 101, first square sleeve; 102, first connecting beam; 103, first slide hole; 104, first traction plate; 105, slide block; 106, first oil cylinder; 2 , top frame; 201, second square sleeve; 202, second connecting beam; 203, second oil cylinder; 204, hinged ear; 205, guard plate; 3, side bracket; 301, outer beam; Beam; 4, front baffle; 401, third oil cylinder; 5, main arm; 6, main arm cover; 601, second sliding hole; 7, fourth oil cylinder; 8, second traction plate; 9, fifth oil cylinder .

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that

The specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined. "Several" means one or more than one, unless otherwise clearly and specifically defined.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right" etc. The orientation or positional relationship is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a reference to the utility model. limits.

Embodiment one

As shown in Figure 1, a hydraulic front beam support device for a cantilever roadheader is disclosed in this embodiment, which includes an underframe 1, a top frame 2 that can move back and forth is arranged above the bottom frame 1, and the top frame 2 Both sides of the side are provided with side brackets 3 that can move left and right.

When the front beam support device is working, the top frame 2 moving back and forth and the side brackets 3 that move left and right telescopically cooperate with each other to ensure that the front beam support will not Scratching the walls on both sides of the roadway, while avoiding a large empty head space, reduces the risk of the roadway roof collapsing.

As a way to realize the front and rear movement of the top frame 2, as shown in FIG. connection, the top surface of the first square sleeve 101 is provided with the first sliding hole 103 along its length direction, the first sliding hole 103 is provided with the first traction plate 104, and the upper part of the first traction plate 104 is connected with the top frame 2 , the lower end of the first traction plate 104 is welded with the slider 105, the slider 105 is slidably connected in the first square sleeve 101, the rear of the slider 105 is provided with a first oil cylinder 106, and the first oil cylinder 106 is arranged on the first square sleeve 101 Among them, the telescopic end of the first oil cylinder 106 is connected with the first oil cylinder 106 , and the body of the first oil cylinder 106 is connected with the first square sleeve 101 .

The sliding block 105 is driven to slide in the first square sleeve 101 by controlling the expansion and contraction of the first oil cylinder 106 , and then the top frame 2 is pulled forward and backward by the first traction plate 104 .

As a way to realize the left and right telescopic movement of the side bracket 3, as shown in Figures 3 and 4, the top frame 2 includes two second square sleeves 201 arranged transversely, and the second square sleeve 201 is passed between the two second square sleeves 201. The connecting beam 202 is welded and connected; each second square sleeve 201 is provided with two second oil cylinders 203, the second oil cylinder 203 is connected with the second square sleeve 201, and the telescopic end of the second oil cylinder 203 is connected to the corresponding side Bracket 3 is connected.

The side bracket 3 includes an outer side beam 301, and the two ends of the outer side beam 301 are provided with guide and slide connecting beams 302, and the guide and slide connecting beams 302 are slidably connected in the second square sleeve 201, and the ends of the guide and slide connecting beams 302 are connected to the second square sleeve 201. The telescopic ends of the two oil cylinders 203 are connected. By controlling the expansion and contraction of the second oil cylinder 203, the side bracket 3 is driven to move left and right.

In order to ensure the stability of the top frame 2 moving back and forth, the second connecting beam 202 corresponds to the first connecting beam 102 up and down, and both sides of the second connecting beam 202 are welded with guard plates 205, and the lower end of the guard plate 205 extends to the first A side portion of the connecting beam 102 .

In this embodiment, the second square sleeve 201 at the front is provided with two hinged ears 204, and the hinged ears 204 are hinged with the corresponding first traction plate 104.

Embodiment two

In this embodiment, structures such as the front baffle plate 4, the main arm 5, and the main arm cover 6 are added on the technical basis of the first embodiment.

The front baffle 4 further improves the safety of the support. Specifically, the front baffle 4 is hinged on the front portion of the underframe 1, and the rear of the front baffle 4 is provided with a third oil cylinder 401, and the telescopic movement of the third oil cylinder 401 The end is hinged with the front baffle 4, and the body of the third oil cylinder 401 is hinged with the underframe 1.

The main arm 5 and the main arm cover 6 are mainly used to control the raising and folding of the bottom frame 1. Specifically, two main arms 5 are hinged at the rear of the bottom frame 1, and the main arm 5 is slidably connected to the main arm cover 6. Among them, the main arm cover 6 is provided with a fourth oil cylinder 7, the telescopic end of the fourth oil cylinder 7 is connected with the main arm 5, and the body of the fourth oil cylinder 7 is connected with the main arm cover 6. By controlling the expansion and contraction of the fourth oil cylinder 7, the underframe 1 is driven to lift.

The side wall of the front part of the main arm cover 6 is provided with a second sliding hole 601 along its length direction, and a second drawing plate 8 is arranged in the second sliding hole 601. One end of the second drawing plate 8 is welded and fixed to the main arm 5, and the other One end is connected with the underframe 1 through the fifth oil cylinder 9 , the telescopic end of the fifth oil cylinder 9 is hinged with the underframe 1 , and the body of the fifth oil cylinder 9 is hinged with the second traction plate 8 . By controlling the expansion and contraction of the fifth oil cylinder 9, the underframe 1 is driven to flip and fold.

It should be noted that the lower parts of the two main arm sleeves 6 are hinged on the cutting part of the roadheader, and the sixth oil cylinder 10 is arranged on the cutting part of the roadheader, and the telescopic end of the sixth oil cylinder 10 is hinged with the main arm sleeves 6. The body of the sixth oil cylinder 10 is hinged to the cutting part of the roadheader, and the sixth oil cylinder 10 is used to control the rotation of the main arm sleeve 6 .

The first oil cylinder 106, the second oil cylinder 203, the third oil cylinder 401, the fourth oil cylinder 7, the fifth oil cylinder 9 and the sixth oil cylinder 10 in the embodiment are all connected with the hydraulic control system on the roadheader through hydraulic pipelines.

When the oil cylinder is installed, holes can be offered on the first square cover 101, the second square cover 201 and the main arm cover 6, and the holes are blocked with steel plates after the oil cylinder is installed. The blocked steel plate is fixed by bolts.

The above-mentioned embodiments are only to describe the preferred mode of the present utility model, not to limit the scope of the present utility model. The various deformations and improvements mentioned above should all fall within the scope of protection determined by the claims of the utility model.

Claims (8)

1. a cantilever type roadheader hydraulic front probe beam supporting device, it is characterized in that: comprise underframe (1), the top of described underframe (1) is provided with the top frame (2) that can move forward and backward, so Both sides of the top frame (2) are provided with side brackets (3) capable of telescopically moving left and right. 2. The cantilever type roadheader hydraulic front probe beam support device according to claim 1, characterized in that: the underframe (1) comprises two longitudinally arranged first square sleeves (101), and the two The first square sleeves (101) are connected by a first connecting beam (102), and the top surface of the first square sleeve (101) is provided with a first sliding hole (103) along its length direction, and the first sliding hole (103) is opened on the top surface of the first square sleeve (101). A first traction plate (104) is arranged in a sliding hole (103), the upper part of the first traction plate (104) is connected with the top frame (2), and the lower end of the first traction plate (104) is connected with the slider (105) fixedly connected, the slider (105) is slidingly connected in the first square sleeve (101), the rear of the slider (105) is provided with a first oil cylinder (106), and the first oil cylinder (106) is arranged in the first square sleeve (101), the telescopic end of the first oil cylinder (106) is connected with the first oil cylinder (106), and the body of the first oil cylinder (106) is connected with the first oil cylinder (106) A side cover (101) is connected. 3. The cantilever type roadheader hydraulic front beam support device according to claim 2, characterized in that: the top frame (2) includes two second square sleeves (201) arranged transversely, and the two The second square sleeves (201) are connected by a second connecting beam (202); Each of the second square sleeves (201) is provided with two second oil cylinders (203), the second oil cylinders (203) are connected with the second square sleeves (201), and the second oil cylinders The telescopic end of (203) is connected with the corresponding side bracket (3). 4. The cantilever type roadheader hydraulic front probe beam support device according to claim 3, characterized in that two hinged ears (204) are arranged on the second square sleeve (201) located in front, and the The hinge ear (204) is hinged to the corresponding first traction plate (104). 5. The cantilever type roadheader hydraulic front beam support device according to claim 3, characterized in that: the second connecting beam (202) and the first connecting beam (102) correspond to each other up and down, and the Guard plates (205) are fixed on both sides of the second connecting beam (202), and the lower end of the guard plate (205) extends to the side of the first connecting beam (102). 6. The cantilever-type roadheader hydraulic front beam support device according to claim 3, characterized in that: the side bracket (3) includes an outer beam (301), and the two ends of the outer beam (301) All are provided with a sliding guide beam (302), and the sliding guide beam (302) is slidably connected in the second square sleeve (201), and the end of the sliding guide beam (302) is connected to the The telescopic end of the second oil cylinder (203) is connected. 7. The cantilever type roadheader hydraulic front probe beam supporting device according to claim 1, characterized in that: the front part of the chassis (1) is hinged with a front baffle (4), and the front baffle ( 4) is provided with a third oil cylinder (401) at the rear, the telescopic end of the third oil cylinder (401) is hinged to the front baffle (4), and the body of the third oil cylinder (401) is hinged to the bottom on the rack (1). 8. The cantilever type roadheader hydraulic front probe beam support device according to claim 1, characterized in that: the rear of the chassis (1) is hinged with two main arms (5), and the main arms ( 5) Slidingly connected in the main arm sleeve (6), the fourth oil cylinder (7) is arranged in the main arm sleeve (6), and the telescopic end of the fourth oil cylinder (7) is connected with the main arm (5) connected, the body of the fourth oil cylinder (7) is connected with the main arm sleeve (6); The front side wall of the main arm cover (6) is provided with a second sliding hole (601) along its length direction, and a second traction plate (8) is arranged in the second sliding hole (601). One end of the two traction plates (8) is fixedly connected with the main arm (5), and the other end is connected with the underframe (1) through the fifth oil cylinder (9), and the telescopic end of the fifth oil cylinder (9) is connected with the The underframe (1) is hinged, and the body of the fifth oil cylinder (9) is hinged with the second traction plate (8).

Images